Pressure-regulator.



.F. W. ROLLER. PRESSURE REGULATOR. APPLICATION FILED AUG. 17, 1 915.

Patented May 30, 1916.

W a M'M/m FRANKW. ROLLER-,7 OF EAST ORANGE, NEW JERSEY, ASSIGNOR, BY MEsNE ASSIGN- MENTS, r0 SARCO COMPANY, 11m,

A CORPORATION OF NEW YORK.

PRESSURE-REGULATOR.

To all whom z't nay concern:

Be itknown that I, FRANK W. ROLLER, a citizen of the United States, residing at East Orange, inthe county of Essex and State of New Jersey, have invented certain new and useful Improvements in Pressure-Regulators, of which the following isa full, clear, and exact specification.

My invention relates to an improvement in pressure regulators, and is particularly applicable to the control or regulation of the temperature ofany medium at any particular location desired. It is also applicable to the regulation of pressure and has various other applications which will be understood by those sln'lled inthe art.

- The main objects of my invention are to provide a regulator which shall be reliable in operation, durable and simple in constructio A In accordance with one feature of niy in vention, I employ an inclosed pressure exertingmedium and provide protective means for relievin the regulating system from ex-j cessive or #a normal pressures which otherwise might seriously impair or destroy the regulating means.

I also provide adjustable means whereby the regulation maybe controlled as desired.

Other features and objects of my inven- -tion will be understood from the following description and accompanyingdrawing, in which the figure illustrates a vertical sectional view of regulating means embodying one form of my invention. v In-the construction shown, smy invention comprisesthree parts, the part at the right of the drawingbeing the portion located at; the pointwhere the temperature, in this particular embodiment, 'is. 1:0 be maintained .within predetermined limits. n r Theleft-hand .portion of the figure illusct'rates the ineans for controlling, by avalve,

damper, or other suitable means,the supply 45 of fuel or other medium for eflecting the increase or decrease of temperature at the point to be controlled. It will be understood byv vthose skilled in the-art that these mediums ay be controlled and that the change of "mperature at the point to be controlled may be accomplished in variousways. As this forms no part ofmyihvention, the particular ,means isnot illustrated in the draw- The middle portionof the figure illustrates Specification of Letters Patent.

Application filed August 17,1915. Serial No. 46,010.

Patented May 30, mic.

protective and adjustable meanswhich serves toprotect all parts of the regulator from excessive or abnormal pressures which otherwise might cause breakage or distention of the parts beyond proper limits and which mlght serlously interfere with the proper capacity of the pressure exerting medium for controlling the regulation as desired. The rlght-hand portion of the figure comprises a cylindrical casing or tube 1 closed at its'lower end andhaving a cap- 2 at its upper end. A pipe connection 3 extends from this cap.

A valve 9 is shown at the left of the figure,

the opening of which causes a supply of fuel or other medium for increasing the temperature of the medium to be controlled at the location of the part at the right-hand portion of the drawing. The ,valve operating means is shown, in this. instance, as comprising a cylindrical casing 10 closed at its lower end byan end piece 11 and at its upper end by a cap 12, a'pipe connection 13 extending fromthis cap. A rod 14 extends freely through the end piece 11 and has secured to its upper end an end piece 15. Between the end pieces ll and 15 extendsan extensible tube 16, preferably of corrugated metal. This extensible tubing .may be of any suitregulation of the system.- I also provide means in this part for adjustment of the able form ofconstruction towithstandthe pressuresaand temperatures required in the particular application of my invention. The

ends of the tube' 16 Ere hermetically sealed to its end pieces. The lower end of the rod 14 engages the valve stem.17 and may be directlyconnectedtherewith. Between the stop 18 on the valve stem or rod 14,.an'd a fixed point such as the valve casing 9, is

- located a spring 19 which exerts apressure tending to open the valve 9. A casing 20 incloses the'spring 19'andforms a suitable supporting part between the" valve and the lower end of the casing 10.

The protective'means, in this instance,

comprises a cylindrical casing 21, the lower.

end of which isclosed and its upper end carries a cap 22 having an adjustable threaded connection with the casing 21. A rod 23 freely passes'through the cap 22 and has an end-piece 24 secured to its lower end; Between this end piece and the upper part of the casing 21fis another extensible tube 25 of the form b'o've described, the ends 'of the j v i l I 9 8 1 tube 25 being hermetically sealed at its ends. changes in the system and the adjustments Another-cap 26 hasanadjustable threaded ofthe parts;- connection with thewoutside of cap 22. A By adjustment of thecap. 26 int-elation flange 27 vseats on the top of .cap 22, the rod to cap 22 thepressure at which-spring 28 a 23 engages the'bottom of the flange through begins to yield against the opposing. pres-7o an opening in cap 22. ,'A spring 28 is located sure,vma y'be adjusted to'any' desired amount between the flange 2'Z 'and the top of cap 26 depending upon'th'e particular 'requir'en'nents which tends to seat the flange against the or variables of the system. i

, cap 22 and hold 'the'rod-23 in the position The temperature tobemaintained atthe. 1e shown. i b localityfof the medium where the-right 75 Pipes 3 and, 13 interconnect the casings hand or thermostatic element ofthe ,regu- "1, 21 andv 10,- placing all. three casings in] latorispositioned may be readily adjusted direct connection. Suitable 'e'xpansible fluid, to; suit particular requ'irer'nents by; adjust which may be a gas or liquid, fills th ecasin'gv meat; of, cap '22 withjrelationf' tocasing. 21,

1 1 and the spacesincasin s21 and which f thus-causing1a lengthening or'-'-short ening."'at I are outside of the exten'slble tubes 25 andllfi of'theltu'be .25 when the flange 27 isseatedf p In operation, assuming that the valve/J9 against-the cap 22;; jAdjustment causing is open, the supply of fu'el, steam or other lengthening of tube 251m any. desired posiheating mediumfpasses freely through the. -tiflo'n*wi1l causethe temperature '-of the 'me 29 valve 9 and causes the temperature-of the. 1' din-Into be controlled'to'befmaintained at'a -85 medium, where the right-hand portion "of .hi-gher };a'vera-ge temperature while shorten{ the regulator is lo'cated,to be gradually ing of the tube 2 5"wil-l cause the-opposite raised. The increase in temperature causes efiect. Ithusju'nite' with the adjustablepro, the fluid within the casing '1 to gradually tecti i' e ,n1eans,"a means for adjustment of f 25 expand and the fluid passes through the the-temperature to be controlledj In to pipe connections to the-other casings ands My invention ma'y be embodied in various 7 7 causes increase of pressure in the system. forms of construction without departin'g The increase of pressurecauses the headfrom'sth'e scopethereof. j

15 of the tube 16 to .be graduallyforced Having thusdescribed invention, 3 downwardly, gradually closing the valve 9 *declare that what I cla masnewand-desire 95- against the pressure .of'spring 19, and gradto secure by-Letters lajtent.;is;-v

ually cutting oil vthe supplyof fuel,"-steam, v l. In a regulator, "ajtliermos'tatic'element I r i or othermediuni. If the pressure continues comprising a-casing,-;fan; je xpansiblefluid.

-toincrease the valve 9 beco'mes fully closed. If within "said; casing,- a second teasing" connectthe pressure continues to increase beydnd the ed with the. first casing, ;a-n expansible 0 amount which fully closes the'valve 9,-or :be-. 'ment within 'sai'd secondfcasingi and movable yondthe amount which causes the movement in-response to pressu're-r'changes of sa dv of the valve to its final position,'the increased fluidfa regulating"element' ithemovg ent of pressure'then acts, at a pressure dependent which is controlled by Said expansible eleupon the adjustment of cap 26' inrelation mentfa third-casing, connected with both Ofifi.

to cap 22, to raise thelowe'r end of tube'25 said two casings, an expansible element against the pressure ofspring28 Thepresf within. said thirdcasin'g sub ected -t o- .the sure increase beyond that at which the valve pressure ofsaid fluid, yielda'ble means ten'd- 9 attains its final position is thereby preing to oppose movementgof said 1 a s"t:;n-amed- L vented from attaining abnormally 'highexpansible element, a. 'stopftohmit, the :Qp'i pressures, the action of the middle-portion posing tendency of said y1eldab1e .means,t Of "the figure serving to provide a gradually and Ijadjustable means I for adjustmg th "increasing capacity for the e'xp'ansible fluid s' pressure exerted by .sa1d-yieldable Ineansand thus permitting comparatively -small ,2. In a regulato a'pr ssu n h e increases'of pressure beyond that. attained gthermos fi" ifigs n xpanslble ole m e v at the final position ofthe valve. Theregue within saidcasing, ar ulatmg emen o Y "lating means is thereby protected from ab trol i y eexp n a aw t n ff normal pressure inc'reases'fand thus ihasja said-e1;p eme ,;a e n q z gi relief or safety protection against abnorlkexpansibleelement in sand second-casmgfor a qmedilim in casing 1 gradually decreases, ibythe pressurejexertmg medium,.means for? due .to th'eicut'ting *ofi" or.'reductionf 'of the adjusting: saidllastjnjamed 'Q P PSIb 1 heating, the reverse action, takes place, the mentjto any. desired amount,"y1e1da 1 m a spring28 causing the tube 25-to be exten ed i n il gflf i tem??? until the flange 27 seats against the cap 22'] element'm a "certampo tion buteto -vperm1t 5' and the spring. l9.will cause" the head 15 j changeofcapacity upon theenert on ofpres a of the tube 16 to be raised and the valve sure"- beyond j a predeterm ned arr ro niy a t.

05 a The above described operations continue ",said'yield'able means to any desired. amou i;

mal strains. Whenvthe temperature of the varyingfthe capae'itygof'the spaceio'ccupied 61241)' to take place in accordance with therequired 3 Ina regulaiifor, '2, containerapart of which is adapted to be acted upon by heat and to act as a thermostatic element, two expansible members within said container, a regulating element connected to one such expansible member and adapted to be actuated thereby, yielding means connected "to the other such expansible member and adapted to oppose a definite force to its displacement, means to adjust the magnitude of such opposing force, andmeans to adjust the normal displacement volume of the last named expansible member.

4. In a regulator, a fluid container a part of which is adapted to be acted upon by heat and to act as a thermostatic element, two expansible members within such container, respective springs opposing the contraction of said expansible members, a regulating element connected to one such expansible member and adapted to be actuated thereby, a stop to limit the action of the other spring, means to adjust the position of said stop, and means to adjust the normal tension of the associated spring.-

5. In a regulator, a fluid container a part of which is adapted to be acted upon by heat and to act as a thermostatic element, an expansible member within such container, a regulating element connected thereto and adapted to be actuated thereby, means to adjust'the normal volume of said container, a spring adapted to yield to excessive pressure withinthe container and thereby increase its volume, and means to adjust said spring.

6. In a regulator, a thermostatic element comprising a casing, an expansible fluid within said casing, a second casing connected with the first casing, an expansible element within said second casing and movable in response to pressure changes of said fluid, a

regulating element, the movement of which is controlled by said expansible element, a third casing connected with both of said two casings, an expansible element within said third casing subjected to the pressure of said fluid, yieldable means tending to oppose movement of said last named expansible element, a stop to limit the opposing tendency of said yieldable means, adjustable means for adjusting the pressure exerted by said yieldable means, and means to adjust the normal volume of said last named expansible element.

7. In a regulator, a fluid container a part of which is adapted to be acted upon by heat and toact as a thermostatic element, a regulating element adapted to be actuated by pressure within said container, an expansible relief and volume-adjusting member also within said container, a spring acting on said expansible member, a stop to limit such action, a fixed abutment for the spring and means to adjust the said stop and the said abutment.

8. In a regulator, a fluid container, a part of which is adapted to be acted upon by heat and to act as a thermostatic element, a regulating element adapted to be actuated by pressure within said container, said container comprising achamber, an expansible member in said chamber with one end connected to'the chamber wall, a rod extending through the chamber wall and connected to the other end of the expansible member, a spring acting on said rod, a stop adjustably mounted on the chamber Wall and adapted to limit the action of the spring, and an adjustable abutment for said spring.

9. In a pressure regulator, a fluid container, an expa-nsible member therein, a rod extending through the container wall and attached at its inner end to said expansible member, a spring acting against the exterior end of said rod, an adjustable stop to limit the movement of said spring against said rod, and an adjustable abutment for the opposite end of said spring.

In testimony whereof I aflix my signature in presence of two witnesses.

' FRANK W. ROLLER. Witnesses:

. M. W. ISREL, L. K. SAGER. 

